Hi everyone, I need help I you can. I have this Tascam US-122 connected to my powerbook but I cannot record using Garage Band. I hear music from Itunes through the US-122, I see that the input level is fine(checked with the Sound systems preferences). Also checked the MIDI and Audio configuration. I already input my guitar on different channel. Everything is set to use the US-122. MIc does not work either. Is there anything that I need to do with Garage Band?
Thank you all.

P.S.: The US-122 is connected direct to a USB port.

Guys I've found the problem. Garage Band needs to select the Audio Input and this is done through the Preferences panel. That's it. Thank you all.